Quantum Light

This thrilling science fiction adventure follows a family of innocent botanists as they find themselves in the middle of a dangerous drug war on an alien planet. When Rupert, Aire, and Clan members Sesuna and teenage Selick, along with their companion, the Dactyl Pelcon, come to Trellya to negotiate the purchase of plants, they are unaware of the danger that awaits them. Teenage Selick wants to meet the birth mother who sold her to the Thieves Guild as an infant. Sesuna came to investigate suspicious activity on her family's Trellyan estates, only to find that they have been taken over by rebels planning to finance their revolution with the sale of Submit, an illegal, highly addictive drug. In a desperate attempt to save her family's lands, Sesuna, Selick, Rupert and Aire must face the dangerous leader of the rebels and defeat him. 

If you enjoyed the suspenseful sci-fi novel "The Loyal League", you'll be sure to love this book too.